<template>
<div>
    
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
       <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
       <el-breadcrumb-item>用户管理</el-breadcrumb-item>
       <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    
    <!-- 卡片区域 -->
    <el-card class="box-card">
        <!-- 搜索区域 -->
        <el-row :gutter="20">
                 <el-col :span="10">
                     <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getUserList'>
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                     </el-input>
                </el-col>

                <el-col :span="6">
                        <el-button type="success" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
          
        </el-row>

        <!-- 数据展示区域表格 -->

        <el-table :data="userlist" style="width: 100%" border stripe>
            <el-table-column type="index"></el-table-column>
           <el-table-column label="姓名" prop="username"></el-table-column>
           <el-table-column label="邮箱" prop="email"></el-table-column>
           <el-table-column label="电话" prop="mobile"></el-table-column>
           <el-table-column label="角色" prop="role_name"></el-table-column>
           <el-table-column label="状态">
               <template v-slot="scope">
                  <el-switch
                      v-model="scope.row.mg_state"
                      @change="userStateChanged(scope.row)">
                  </el-switch>
               </template>
           </el-table-column>
           <el-table-column label="操作">
               <template v-slot="scope">
                   <!-- 修改按钮 -->
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                  <!-- 删除 -->
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserByid(scope.row.id)"></el-button> 
                  <!-- 分配角色 -->
                   <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                      <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                   </el-tooltip>
                  
               </template>
           </el-table-column>
        </el-table>
      
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
        </el-pagination>

    </el-card>
     <!-- 添加用户对话框 -->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed"
        >
        <!-- 内容主体区域 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input type="password" v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区 -->
        <span slot="footer" class="dialog-footer">
            <!-- 底部按钮 -->
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
        >
        <!-- 主体内容 -->
        <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
           <el-form-item label="用户名">
             <el-input v-model="editForm.username" disabled></el-input>
           </el-form-item>
           <el-form-item label="邮箱" prop="email">
             <el-input v-model="editForm.email"></el-input>
           </el-form-item>
           <el-form-item label="电话" prop="mobile">
             <el-input v-model="editForm.mobile"></el-input>
           </el-form-item>
        </el-form>

        <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClosed">
        <div>
            <p>当前用户：{{userInfo.username}}</p>
            <p>当前用户：{{userInfo.role_name}}</p>
            <p>分配新角色：
                <el-select v-model="selectedRoleId" placeholder="请选择">
                   <el-option
                     v-for="item in rolesList"
                     :key="item.id"
                     :label="item.roleName"
                     :value="item.id">
                   </el-option>
                </el-select>
            </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
    </el-dialog>

</div>
    
</template>

<script>
export default {
    data(){
        // 验证邮箱的规则
        var checkEmail = (rule,value,callback) => {
            // 验证邮箱的正则表达式
            const regEmail = /^([a-zA-Z0-9])+@([a-zA-Z0-9])+(\.[a-zA-Z0-9])+/
            if(regEmail.test(value)){
                return callback()
            }

            callback(new Error('请输入合法的邮箱'))
        }
        // 验证手机号
        var checkMobile = (rule,value,callback) => {
            // 验证手机号的正则表达式
            const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                return callback()
            }

            callback(new Error('请输入合法的手机号'))
        }
        return{
            // 查询列表参数
            queryInfo: {
                query: '',
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userlist: [],
            total: 0,
            // 控制对话框的布尔值
            addDialogVisible: false,
            // 控制添加用户对话框的布尔值
            editDialogVisible: false,
            // 添加对象的表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加表单的验证规则对象
            addFormRules: {
                username: [
                     { required: true, message: '请输入用户名', trigger: 'blur' },
                     { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                // 验证密码是否合法
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 位', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 位', trigger: 'blur' },
                    {validator: checkEmail, trigger:'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入电话', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 位', trigger: 'blur' },
                    {validator: checkMobile, trigger:'blur'}
                ]
            },
            // 查询到的信息对象
            editForm:{},
            // 修改用户的验证规则对象
            editFormRules:{
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 位', trigger: 'blur' },
                    {validator: checkEmail, trigger:'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入电话', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 位', trigger: 'blur' },
                    {validator: checkMobile, trigger:'blur'}
                ]
            },
            // 分配角色的对话框可见属性
            setRoleDialogVisible: false,
            userInfo:{},
            // 角色数据列表
            rolesList:[],
            // 已选中的角色id值
            selectedRoleId: ''
        }
    },
    created(){
      this.getUserList()
    },
    methods:{
       async getUserList(){
           const {data:res} = await this.$http.get('users',{ params: this.queryInfo})
        //    console.log(res);
           if(res.meta.status != 200) return this.$message.error('获取用户列表失败');
           this.userlist = res.data.users;
           this.total = res.data.total
       },
       handleSizeChange(newSize){
        //    监听pagesize改变
          this.queryInfo.pagesize = newSize
          this.getUserList()
       },
       handleCurrentChange(newPage){
        //    监听页码改变
           console.log(newPage);
           this.queryInfo.pagenum = newPage;
           this.getUserList()
       },
    //    switch开关更改数据库对应的数据功能方法
       async userStateChanged(str){
        //    console.log(str);
           const {data:res} = await this.$http.put(`users/${str.id}/state/${str.mg_state}`)
           if(res.meta.status != 200){
             str.mg_state = !str.mg_state 
           return this.$message.error('更新用户状态失败！')
           }
           this.$message.success('更新用户状态成功！')
           
       },
    //    监听添加用户对话框的关闭事件
       addDialogClosed(){
        //    每次关闭对话框就对表单进行重置
           this.$refs.addFormRef.resetFields()
       },
    //    点击确定按钮添加新用户
    addUser(){
        // 首先进行预校验
        this.$refs.addFormRef.validate(async valid => {
            // 不通过验证直接return
            if(!valid) return
            // 通过验证进行添加请求
            const {data:res} = await this.$http.post('users',this.addForm);
            console.log(res);
            if(res.meta.status != 201) return this.$message.error('创建添加用户失败！')
            this.$message.success('添加用户成功！');
            this.addDialogVisible = false;
            // 刷新用户列表
            this.getUserList();
        })
    },
    async showEditDialog(id){
       this.editDialogVisible = true
    //    console.log(id);
       const {data:res} = await this.$http.get('users/'+id)
    //    console.log(res);
       if(res.meta.status != 200) return this.$message.error('拉取用户数据失败！');
       this.editForm = res.data;
    },
    // 修改用户对话框关闭重置
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    // 提交修改表单
    editUserInfo(){
        this.$refs.editFormRef.validate(async valid => {
            // 预校验
            if(!valid) return this.$message.error('数据校验不通过');
            // 发送修改请求
            const {data:res} = await this.$http.put('users/'+this.editForm.id,{
                email:this.editForm.email,
                mobile:this.editForm.mobile
            })
            if(res.meta.status != 200) return this.$message.error('修改失败！');
            this.$message.success('修改成功');
            this.editDialogVisible = false;
            this.getUserList();
        })
    },
    // 根据id删除用户的信息
    async removeUserByid(id){
        // 询问用户是否删除数据
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if(confirmResult != 'confirm'){
            this.$message.info('已取消');
        }else{
            const {data:res} = await this.$http.delete('users/'+id)
            if(res.meta.status != 200) return this.$message.error('删除失败');
            this.$message.success('删除成功');
            this.getUserList();
        }
    },
    // 分配角色对话框
    async setRole(userInfo){
        
        this.userInfo = userInfo
        // 获取所有角色列表
        const {data:res} = await this.$http.get('roles');
        if(res.meta.status != 200) return this.$message.error('获取角色列表失败')
        this.rolesList = res.data
        // 设置对话框可见
        this.setRoleDialogVisible = true
    },
    // 分配角色对话框确定按钮保存
    async saveRoleInfo(){
       if(!this.selectedRoleId){
           return this.$message.error('请选择要新分配的角色')
       }
       const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.selectedRoleId});
       if(res.meta.status != 200){
           return this.$message.error('更新角色失败')
       }
       this.$message.success('分配成功');
       this.getUserList();
       this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框关闭
    setRoleDialogClosed(){
        this.selectedRoleId = ''
        this.userInfo = {}
    }
    }
}
</script>

<style lang="less" scoped>

</style>